A device and method for eliminating jumping and misalignment of laser-welded thin-tube pipelines and ensuring gaps
A laser welding and thin tube technology, applied in laser welding equipment, piping systems, manufacturing tools, etc., to achieve the effect of misalignment, improving product qualification rate, and improving productivity
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Embodiment 1
[0053] a. Surface pickling, cold rolling and annealing are carried out to the steel strip 2; the annealing temperature is 880° C., the annealing time is 6 hours, and the thickness of the steel strip after cold rolling is a steel strip with a thickness of 0.8 mm;
[0054] b. The pretreated steel strip is transported to the platform, and the height of the edge of the steel strip is rolled to 0.95 times the radius of the welded pipe to be prepared by multiple pairs of first outer forming transfer rolls 112 and first inner forming transfer rolls 117; Wherein, the number of sets of the plurality of pairs of first outer forming transfer rolls 112 and first inner forming transfer rolls 117 is 50 sets, the distance is 100 mm, and the rotation speed is 500 mm / min.
[0055] c. Roll the edge height of the steel strip processed in step b to 1.3 times the radius of the welded pipe to be prepared by multiple pairs of second outer forming transfer rolls 122 and second forming transfer rolls 1...
Embodiment 2
[0059] a. Surface pickling, cold rolling and annealing are carried out to the steel strip 2; the annealing temperature is 885° C., the annealing time is 5.5 hours, and the thickness of the steel strip after cold rolling is 0.5 mm;
[0060] b. Transport the pretreated steel strip to the platform, and roll the edge height of the steel strip to 1.0 times the radius of the welded pipe to be prepared by multiple pairs of first outer forming transfer rolls 112 and first inner forming transfer rolls 117; Wherein, the number of sets of the plurality of pairs of first outer forming transfer rollers 112 and first inner forming transfer rollers 117 is 5 sets, the distance is 200 mm, and the rotation speed is 10 mm / min.
[0061] c. Roll the edge height of the steel strip processed in step b to 1.6 times the radius of the welded pipe to be prepared by multiple pairs of second external forming transfer rolls 122 and second forming transfer rolls 126; wherein, the multiple pairs of second Th...
Embodiment 3
[0065] a. Carry out surface pickling, cold rolling and annealing treatment to the steel strip 2; the annealing temperature is 875° C., the annealing time is 6.5 hours, and the thickness of the steel strip after cold rolling is a steel strip with a thickness of 1.5 mm;
[0066] b. The pretreated steel strip is transported to the platform, and the height of the edge of the steel strip is rolled to 0.9 times the radius of the welded pipe to be prepared by multiple pairs of first outer forming transfer rolls 112 and first inner forming transfer rolls 117; Wherein, the number of sets of the plurality of pairs of first outer forming transfer rolls 112 and first inner forming transfer rolls 117 is 100 sets, the distance is 10 mm, and the rotation speed is 1000 mm / min.
[0067] c. Roll the edge height of the steel strip processed in step b to 1.0 times the radius of the welded pipe to be prepared by multiple pairs of second outer forming transfer rolls 122 and second forming transfer r...
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Abstract
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